To look up a payment, you must provide your Minecraft username, and one of: transaction ID, email address or the value of the purchase:
The OPCraft server is in no way affiliated with Mojang, AB. Nor should it be considered a company endorsed by Mojang, AB. Any contributions or purchases made on this store go to the OPCraft Development Team.
If you have any issues with your purchase, contact our support email at firstname.lastname@example.org. Do NOT contact Mojang AB.